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Old 10-22-2009, 04:51 PM   #1
mustang90242
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Default is it a really bad cranshaft?

i took my 1999 cobra to several mechanics to see what was wrong with my car because it was doing a ticking noise after 2300 rpm

and 3 mechanics said my crankshaft needed to be replaced

i dont really trust them....could that ticking noise be because of a bad crankshaft?
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Old 10-22-2009, 05:44 PM   #2
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i took my 1999 cobra to several mechanics to see what was wrong with my car because it was doing a ticking noise after 2300 rpm

and 3 mechanics said my crankshaft needed to be replaced

i dont really trust them....could that ticking noise be because of a bad crankshaft?
They probably think that it spun a bearing. If so, then the crankshaft COULD need replacing, or it could just need to be machined.
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Old 10-22-2009, 09:13 PM   #3
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If its a rod bearing toulll get a knock, not a tap.and it'll do it at idle too. I'd pull the valve covers 1st. And if the crank is hurt u can usually go .010 under, get bearings for that app. Unless the stress cracked it then its fubar
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Old 10-22-2009, 09:39 PM   #4
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If its a rod bearing toulll get a knock, not a tap.and it'll do it at idle too. I'd pull the valve covers 1st. And if the crank is hurt u can usually go .010 under, get bearings for that app. Unless the stress cracked it then its fubar
What he said.
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Old 10-22-2009, 11:13 PM   #5
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They probably think that it spun a bearing. If so, then the crankshaft COULD need replacing, or it could just need to be machined.
do you know an estimate of what i should be expecting for the repair
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Old 10-22-2009, 11:15 PM   #6
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If its a rod bearing toulll get a knock, not a tap.and it'll do it at idle too. I'd pull the valve covers 1st. And if the crank is hurt u can usually go .010 under, get bearings for that app. Unless the stress cracked it then its fubar
it sounds normal when its at idle

wat do you mean .10 under?
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Old 10-22-2009, 11:18 PM   #7
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it sounds normal when its at idle

wat do you mean .10 under?
If the journal is damaged but not cracked, they will grind the crank. Each step down is in "10s"
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Old 10-22-2009, 11:40 PM   #8
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If the journal is damaged but not cracked, they will grind the crank. Each step down is in "10s"
do you know how much that will cost by a repair shop?
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Old 10-23-2009, 02:32 AM   #9
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to get a crank ground it can be anywhere from 50-100 bucks
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Old 10-23-2009, 11:35 AM   #10
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to get a crank ground it can be anywhere from 50-100 bucks
True, but judging from the OP's posts, I highly doubt he'll be tearing down the motor himself and then re-assembling everything.

OP, you're looking at a few grand.
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Old 10-23-2009, 11:35 AM
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